29801161 has 8 divisors (see below), whose sum is σ = 32412744. Its totient is φ = 27235200.

The previous prime is 29801159. The next prime is 29801179. The reversal of 29801161 is 16110892.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 435600 + 29365561 = 660^2 + 5419^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29801161 - 2¹ = 29801159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29801111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10036 + ... + 12661.

It is an arithmetic number, because the mean of its divisors is an integer number (4051593).

Almost surely, 2^29801161 is an apocalyptic number.

It is an amenable number.

29801161 is a deficient number, since it is larger than the sum of its proper divisors (2611583).

29801161 is a wasteful number, since it uses less digits than its factorization.

29801161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22811.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 29801161 is about 5459.0439639190. The cubic root of 29801161 is about 310.0352405307.

The spelling of 29801161 in words is "twenty-nine million, eight hundred one thousand, one hundred sixty-one".